OutputDebugString in .NET (C#)

In my old MFC programming days we used to track the problems using the OutputDebugString and I have written my own version of OutputDebugString which accepts multiple arguments. When I started C# and .NET I wanted to know how can I do this in C sharp as well and remember that it should be as simple as MFC one. At least Microsoft says its more easier to code in .net than any other languages.